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(No Model.)

. M. A. EKL.

LANTERN. N0. 2,45,802. Patented Aug; 16,1881.

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. UNITED STATES PATENT OFFICE.

MARTIN A. EKL, OF ST. LOUIS, MISSOURI.

LANTERN.

SPECIFICATION forming part Of Letters Patent NO. 245,802, dated August16, 1881. Application filed June as, 1881. (No model.)

To all whom it may concern:

Be it known that I, MARTIN A. EKL, of the city of St. Louis, in theState of Missouri,have invented a certain new and useful Improvement inLanterns, of which the following is a full, clear, and exactdescription, reference being had to the accompanying drawings, formingpart ofthis specification.

My invention relates to a tubular lantern; and it consists in the meansfor regulating the amount of air, regardless of winds, entering theirupper ends to feed the burner.

The main feature of my invention consists in making two horizontal cutsnear the upper end of each tube and then pressing inward that portion ofthe tube between the cuts, so that an air-rest is formed within thetube, which prevents too great an influx of air at any one time.

In the drawings, Figure l is a perspective view of a complete lanternhaving myimprove- Inent applied. Fig. 2 is a detail top view of one ofthe tubes and its accompanying parts. Fig. 3 is a detail side View ofsame. Fig. 4 is a detail section on line a: 00, Fig. 3, showing the restor the portion of the tube between the cuts pressed into its properposition within the tube. Fig. 5 is a detail vertical section on line no00, Fig. 2..

The lantern proper needs no description, as it is of common form.

A A are the air-tubes, each having near its upper end horizontal cuts aa. The portion a of the tube between these cuts is pressed inward withinthe tube, and forms a rest to prevent too much air entering at any onetime, as when there is a high or irregular wind.

B is the flange, which surrounds and holds in place the ring O, in whichthe cap of the lantern has vertical movement. This flange I prefer tomake with projections or ears b, which surround and firmly hold in placethe upper ends of the tubes. The flange is so located vertically that itdivides the months a of the openings, formed as above described,-

into two divisions horizontally. The months at are divided into twodivisions vertically by plates D, which extend the whole distance i fromthe tubes to the ring 0. I prefer to press the portions of the ringUdirectly opposite the mouths a into the position shown in Figs. 1, 2,and 4, because I think it aids in regulating the air-draft to the tube.By separating the months a into four divisions and making the rest awithin the tube in this way a certain amount of air, and that amountonly, is alwaysfurnished to the burner, regardless of the direction andstrength of the wind.

Another advantage arising from having the ring G formed withenlargements c, as shown in Figs. 1, 2, and 4, is that the usual slot inthe ring to allow the passage of the tightening-pin c on the cap 0 isdone away with, as the pin may enter either of these enlargements c andthe cap be tightened upon the globe by turning it to the right or left,the pin bearing against the (or one of the.) inclined faces 0 of thering 0, as shown in Fig. 1.

Having thus described my invention, the following is what 1 claim as newtherein, and desire to secure by Letters Patent, viz:

1. In combination with a lantern, the vertical tubes A A, having mouthsa and rest a, the said mouths being separated into four divisions byflange B and plates D, as and for the purpose set forth.

2. In combination with a lantern made substantially as set forth, thering 0, having enlargements c, for the combined purpose set forth, andinclined face or faces a", to form a bearing-surface for the pin 0 onthe cap C, substantially as set forth. MARTIN A. EKL. Witnesses:

SAML. KNIGHT, ANTON FLOYDA.

